CVE-2025-32880Public exploitNetwork attack vector

Firmware disclosure and manipulation via cleartext HTTP

Published Jun 20, 2025 · Updated Jun 24, 2025

Cleartext firmware transfer in COROS PACE 3 through 3.1008.0 allows man-in-the-middle attackers to read and alter firmware over WLAN. The watch's WLAN update path requests firmware binaries from s3eu.coros.com over unencrypted HTTP, providing neither transport confidentiality nor integrity. An attacker must control or intercept the watch's WLAN traffic; the exposed transfer permits firmware content disclosure and manipulation.

CVSS severity9.8
Critical
EPSS probability0.42%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

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Summary

What happened

Cleartext firmware transfer in COROS PACE 3 through 3.1008.0 allows man-in-the-middle attackers to read and alter firmware over WLAN. The watch's WLAN update path requests firmware binaries from s3eu.coros.com over unencrypted HTTP, providing neither transport confidentiality nor integrity. An attacker must control or intercept the watch's WLAN traffic; the exposed transfer permits firmware content disclosure and manipulation.

The record

CVE
CVE-2025-32880
Published
Jun 20, 2025
Updated
Jun 24, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-319, T1557
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jun 20, 2025CVE publishedPublication date reported by the CVE source.
  2. Jun 24, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

9.8CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-319Cleartext Transmission of Sensitive Information
T1557Adversary-in-the-Middle

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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